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Table 2 Major equipment investments for three scenarios with an annual plant capacity of 50,000 tons

From: Turning C1-gases to isobutanol towards great environmental and economic sustainability via innovative biological routes: two birds with one stone

Area

Equipment

Installed cost, MM$

References

Scenario #1

Scenario #2

Scenario #3

100

Gas compressor package

0.31

0.53

0.27

[33]

Heat exchangers

0.06

0.13

0.04

[44]

Air separation unit

1.32

7.84

0.00

[58]

200

Pump

4.08

3.37

3.42

[49]

Media-prep tank

49.99

38.53

39.05

[49]

Media-prep tank agitator

0.60

0.40

0.41

[49]

Closed tubular photobioreactors

0.59

0.00

0.94

[32]

Bubble column seed bioreactor

0.80

1.18

0.00

[33]

Bubble column bioreactor

17.84

36.25

0.00

[33]

Fermentation transfer pump

0.15

0.26

0.00

[33]

Flash tank

10.75

14.54

14.71

[33]

300

Dissolved air flotation separator

6.96

6.60

6.71

[49]

Centrifuge

4.81

4.65

4.71

[49]

Distillation feed pump

4.09

3.93

3.90

[49]

Distillation column

105.67

100.92

100.32

[33]

Decanter

2.57

2.46

2.45

[33]

400

Anaerobic digester systems

1.91

0.12

1.82

[44]

Conveyor

1.52

0.04

1.46

[49]

Combustor

0.15

0.31

1.37

[44]

Heat exchangers

0.33

0.36

0.19

[44]

Flash tanks

15.42

14.54

14.68

[33]

500

Cooling tower system

2.30

2.16

2.18

[33]

Cooling water pump

0.73

0.69

0.70

[33]

Make-up water pump

0.58

0.55

0.02

[33]

Heat exchangers

4.43

4.19

4.23

[44]